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基于GPU交互式光线跟踪算法的设计与实现
引用本文:陆建勇,曹雪虹,焦良葆.基于GPU交互式光线跟踪算法的设计与实现[J].南京工程学院学报(自然科学版),2009,7(3):61-67.
作者姓名:陆建勇  曹雪虹  焦良葆
作者单位:1. 南京邮电大学通信与信息工程学院,江苏,南京,210003
2. 南京工程学院通信工程学院,江苏,南京,211167
基金项目:西门子中国研究院资助项目,南京工程学院校科研和教改项目 
摘    要:由于GPU并行处理能力和可编程能力的提高,计算量巨大的光线跟踪算法在GPU上的实现成为研究热点.在CUDA平台上验证了Foley等人所采用的KD-tree加速算法,实现了交互式光线跟踪.在图像分辨率为512×512,跟踪深度为4时,针对复杂场薏的渲染速度达到15f/s,基本实现交互式光线跟踪.

关 键 词:并行计算  GPU  光线跟踪  KD-tree  流计算

Design and Implementation of Interactive Ray Tracing Algorithm Based on GPU
LU Jian-yong,CAO Xue-hong,JIAO Liang-bao.Design and Implementation of Interactive Ray Tracing Algorithm Based on GPU[J].Journal of Nanjing Institute of Technology :Natural Science Edition,2009,7(3):61-67.
Authors:LU Jian-yong  CAO Xue-hong  JIAO Liang-bao
Institution:1. School of Telecommunication and Information Engineering, Nanjing University Telecommunications, Nanjing 210003, China; Posts 2. School of Communication Engineering, Nanjin Institute of Technology, Nanjing 211167, China)
Abstract:Thanks to the improvements of parallel computation power anti programming abilities of GPU. ray lraeing algorithm on GPU has become a heated area of research. Using the KD-tree data structure, a model system is conssteted on CUDA platform and parallel processing of ray tracing is achieved. Interactive ray tracing can be achieved when image resolution ratio is 512 ×512, the traeing depth 4 anti an interaetive rendering rate 15 f/s.
Keywords:GPU  KD-tree
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